I. Prinsipyu para keng PamiliButterfly Valves
1. Pamili king uri ning istruktura
Sentru butterfly valve (sentru line type):Ing valve stem ampo ing butterfly disc makalibutad lang symmetrical, atin lang simpleng istruktura ampo mababa ing gastus. Ing pamagtatak makadependi ya keng goma a malambut a tatak. Iti masanting ya para kareng okasyun na ating normal a temperatura ampo pressure ampo alang mahigpit a requirements.
Single eccentric butterfly valve:Ing valve stem maka-offset ya keng libutad ning butterfly disc, babawasan na ing friction pilatan da reng sealing surfaces kabang mag-operate ya ampo magpalawe ya keng service life. Masanting para kareng medium ampo low-pressure a aplikasyun na mangailangan maralas a pamagbukas ampo pamagsara.
Double eccentric butterfly valve (high-performance butterfly valve):Ing valve stem maka offset ya keng butterfly disc ampo keng sealing surface center, inya sa't alang friction a operasyun. Keraklan atin yang metal o composite sealing. Masanting para keng matas a temperatura, matas a presyur, corrosive, o particulate media.
Atlung-eksentrik a balbula ning parul:Ing pamisanmetung ning dual eccentricity ampo ing beveled conical sealing pair, miras yang zero friction ampo zero leakage, a maki matas a temperatura ampo matas a pressure a resistensya. Masanting para keng masikan a obra (alimbawa, steam, oil/gas, high-temperature media).
2. Pamili king mode ning pamagmaneho
Manual:para kareng malating diametru (DN≤200), mababang presyur, o e maralas a sitwasyun ning operasyun.
Worm gear drive:Masanting ya para kareng medium anggang maragul a diametru na mangailangang effortless operation o flow regulation.
Pneumatic/Electric:Remote control, automation systems, o mabilis a shut-off requirements (alimbawa, fire alarm systems, emergency shutdowns).
3. Sealing materials ampo materyales
Soft seal (goma, PTFE, atbp.): masanting a seal, pero limitadu ing temperatura ampo pressure resistance (keraklan ≤120°C, PN≤1.6MPa). masanting ya keng danum, angin ampo keng mahina a corrosion media.
Metal seals (stainless steel, cemented carbide): Matas a temperature resistance (anggang 600°C), matas a pressure, ampo wear and corrosion resistance, pero ing sealing performance mas mababa ya kesa kareng soft seals. Mayap ya para keng matas a temperatura a media keng metallurgy, power plants, ampo petrochemicals.
Materyal ning katawan: Cast iron, carbon steel, stainless steel, alloy steel, o plastic/rubber lining depende keng corrosiveness ning medium.
4. Pressure ampo temperatura range:
Deng soft-sealed butterfly valves keraklan gagamitan de para keng PN10~PN16, a maki temperatura ≤120°C. Deng atlung eccentric metal-sealed butterfly valves malyari lang miras babo ning PN100, a maki temperatura ≥600°C.
5. Katangian ning Trapiku
Nung kailangan ing regulasyun ning danum, mamili kang butterfly valve a maki linear o pare-pareung porsyentu ning katangian ning danum (alimbawa, V-shaped disc).
6. Ing lugal ning pamag-install ampo ing direksyun ning danum:Ing butterfly valve atin yang compact a istruktura, inya sa’t masanting ya para kareng pipeline a limitadu ing espasyu. Keraklan, ala lang pamagbawal keng direksyun ning danum, pero para kareng atlung eccentric butterfly valves, kailangan yang ituring ing direksyun ning danum.
II. Applicable Occasions
1. Water Conservancy ampo Water Supply & Drainage Systems: Urban water supply, fire protection piping, ampo sewage treatment: keraklan gagamit lang soft-sealed centerline butterfly valves, na mababa ing gastus ampo atin lang reliable a sealing. Para kareng pump outlets ampo flow regulation: pilinan me ing worm gear o electric control butterfly valves.
2. Petrochemical ampo natural gas pipelines: Atlung eccentric metal-sealed butterfly valves ing mepili para keng high-pressure resistance ampo leak prevention. Corrosive media (alimbawa, acids/alkalis): Fluorine-lined butterfly valves o corrosion-resistant alloy valves ing gagamitan.
3. Para keng industriya ning kuryenti, circulating water systems, ampo flue gas desulfurization: medium o double eccentric rubber-lined butterfly valves. Para kareng steam pipelines (alimbawa, auxiliary equipment systems kareng power plants): atlung eccentric metal-sealed butterfly valves.
4. HVAC (Heating, Ventilation, and Air Conditioning) chilled ampo hot water circulation systems: soft-sealed butterfly valves para keng flow control o cutoff.
5. Para keng marine engineering ampo kareng pipeline ning danum dagat: corrosion-resistant duplex stainless steel butterfly valves o rubber-lined butterfly valves.
6. Deng pamangan ampo medical-grade butterfly valves (polished stainless steel, quick-connect fittings) makatupad la kareng sterile requirements.
7. Alikabuk ampo particulate media keng espesyal a kundisyun ning operasyun: Deng wear-resistant hard-sealed butterfly valves ila reng rekomendadu (alimbawa, para keng pamagdala ning pulbura keng mina).
Vacuum system: Special vacuumbalbula ning parulmakasiguradu yang pamag-seal performance.
III. Katuntunan
TWSali yamu metung a kapanaligan a partner para keng matas a kalidadbalbula ning parulpero atin ya namang malawak a teknikal a kabiasnan ampo mepatunayan a solusyun kenggate valves, check valves, ampongbalbula ning pamagluwal angin. Nanu man ing kekang kailangan keng pamagkontrol keng likidu, mamye kaming propesyonal, one-stop valve support. Para kareng posibling pamakisanmetung o technical a kutang, malyari kayu pung makipag ugnayan kekami nanu mang oras.
Oras ning pamagpost: Dec-17-2025
